Problems

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Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
0-1 Sequences 1393 287 21% 0.01 337 201 60% 6.5
10 Kinds of People 2540 531 21% 0.01 449 300 67% 5.4
2048 2615 1328 51% 0.00 1327 1141 86% 2.2
3D Printer 104 27 26% 0.00 33 21 64% 7.3
3-Sided Dice 575 42 7% 0.00 110 35 32% 8.7
4 thought 2099 735 35% 0.00 744 618 83% 2.8
A1 Paper 1508 463 31% 0.00 462 359 78% 3.8
Aaah! 8655 4271 49% 0.00 3632 3393 93% 1.5
ABC 981 491 50% 0.00 508 460 91% 1.7
A+B Problem 1673 190 11% 0.06 286 108 38% 8.3
Absurdistan Roads II 362 142 39% 0.00 127 87 69% 6.5
Absurdistan Roads III 820 216 26% 0.04 199 147 74% 5.7
A Classy Problem 2118 604 29% 0.02 553 449 81% 3.7
ACM Contest Scoring 2152 1335 62% 0.00 1200 1140 95% 1.4
Adding Words 2527 506 20% 0.00 618 425 69% 4.7
A Different List Game 3349 250 7% 0.00 385 67 17% 9.1
A Different Problem 10063 4167 41% 0.00 3858 3344 87% 2.0
Adjoin the Networks 664 201 30% 0.00 178 131 74% 6.1
Administrative Difficulties 325 78 24% 0.05 91 62 68% 4.6
Adventures in Moving -- Part IV 397 127 32% 0.00 122 104 85% 4.7
A Favourable Ending 391 70 18% 0.01 111 62 56% 6.5
A Feast For Cats 520 174 33% 0.56 140 115 82% 4.5
Air Conditioned Minions 1552 429 28% 0.00 473 344 73% 4.4
Airline Hub 911 172 19% 0.01 179 108 60% 5.9
Airport Logistics 29 6 21% 0.00 9 6 67% 7.2
Airports 86 30 35% 0.23 26 19 73% 6.0
Akcija 1173 527 45% 0.01 497 430 87% 2.2
Aladin 583 49 8% 0.17 84 14 17% 8.7
Alchemy 28 7 25% 0.03 15 7 47% 7.6
Alea iacta est 21 11 52% 0.47 10 10 100% 4.6
Alien Numbers 793 410 52% 0.00 403 368 91% 1.8
A List Game 2840 823 29% 0.00 791 649 82% 3.2
All about that base 1493 536 36% 0.00 589 484 82% 2.9
All Different Directions 239 122 51% 0.00 125 110 88% 2.6
Allergy Test 127 51 40% 0.00 29 17 59% 5.5
All Friends 414 77 19% 0.01 62 37 60% 8.2
All Just A Dream 492 106 22% 0.19 86 60 70% 6.5
All Pairs Shortest Path 1986 364 18% 0.04 266 170 64% 6.6
Almost Perfect 1595 382 24% 0.00 426 325 76% 3.4
Almost Union-Find 2516 305 12% 0.03 409 177 43% 7.9
Alphabet Spam 2312 1518 66% 0.00 999 959 96% 1.4
Alternative Bracket Notation 154 65 42% 0.00 69 59 86% 5.2
Amalgamated Artichokes 2015 888 44% 0.01 790 696 88% 2.3
Amanda Lounges 660 144 22% 0.07 156 111 71% 6.3
Amazing Race 181 48 27% 0.54 51 37 73% 6.2
Ambiguous Result 95 27 28% 0.04 36 26 72% 6.8
Anagram Counting 779 331 42% 0.00 333 277 83% 2.8
Andrew the Ant 38 12 32% 0.10 15 12 80% 5.7
Androids 187 60 32% 0.09 68 44 65% 6.0
A New Alphabet 3678 1697 46% 0.00 1668 1553 93% 1.6
Animal Classification 876 160 18% 0.04 177 112 63% 6.8
An Industrial Spy 603 333 55% 0.02 252 222 88% 3.2
Another Brick in the Wall 692 369 53% 0.00 374 333 89% 2.1
Another Candies 3070 836 27% 0.00 878 713 81% 2.9
Another Dice Game 55 39 71% 0.00 35 33 94% 3.6
Anthony and Cora 209 53 25% 0.01 78 48 62% 5.1
Antiarithmetic? 475 101 21% 0.18 138 83 60% 6.7
Ants 938 366 39% 0.01 324 272 84% 2.9
Apaxiaaaaaaaaaaaans! 3276 2059 63% 0.00 1893 1807 95% 1.3
Apparatus 446 104 23% 0.01 84 62 74% 5.5
Apple Market 198 31 16% 0.19 51 22 43% 7.1
Apples, Cherries, and Mangos 215 67 31% 0.02 62 49 79% 6.5
Aquarium Tank 184 53 29% 0.00 54 41 76% 4.8
Aqueduct Construction 50 10 20% 0.01 13 10 77% 7.5
Arable Area 177 31 18% 0.08 38 21 55% 8.4
A Rational Sequence 533 209 39% 0.00 211 176 83% 3.7
A Rational Sequence 2 292 221 76% 0.00 219 214 98% 1.5
Arbitrage? 347 69 20% 0.05 54 41 76% 5.8
Arcade! 685 112 16% 0.01 114 80 70% 5.3
Arctic Network 685 252 37% 0.02 189 163 86% 3.9
A Real Challenge 2040 1009 49% 0.00 981 925 94% 1.4
Area of Effect 78 8 10% 4.74 13 6 46% 7.9
Arithmetic 540 110 20% 0.01 134 84 63% 5.4
Army Strength (Easy) 1286 674 52% 0.00 588 535 91% 1.9
Army Strength (Hard) 1500 709 47% 0.01 514 450 88% 2.5
Around and Around We Go 8 2 25% 0.00 4 2 50% 8.5
Around the Track 158 25 16% 0.00 35 17 49% 8.5
Arranging Hat 99 46 46% 0.10 44 39 89% 4.1
Artur 134 22 16% 0.17 27 17 63% 6.3
Artwork 359 119 33% 0.07 133 82 62% 5.8
A Safe Bet 129 44 34% 0.29 37 31 84% 5.2
ASCII Figure Rotation 690 193 28% 0.00 214 175 82% 4.0
As Easy as CAB 125 26 21% 0.00 32 22 69% 6.7
Aspen Avenue 600 226 38% 0.01 139 102 73% 6.1
Assembly Line 25 10 40% 0.68 12 8 67% 7.1
Assigning Workstations 618 200 32% 0.12 203 161 79% 4.5
Association for Computing Machinery 973 390 40% 0.00 377 328 87% 2.0
Association for Control Over Minds 590 205 35% 0.08 198 169 85% 3.6
Association for Convex Main Office 377 93 25% 0.08 93 74 80% 6.1
Association for Cool Machineries (Part 1) 462 95 21% 0.04 123 81 66% 6.4
Association for Cool Machineries (Part 2) 28 18 64% 0.00 18 16 89% 4.2
Association for the Country of Mububa 960 218 23% 0.00 249 165 66% 5.6
Association of Camera Makers 105 5 5% 10.56 8 5 62% 8.4
Association of Cats and Magical Lights 986 217 22% 0.23 191 147 77% 5.0
Association of Computer Maintenance 652 83 13% 0.04 71 42 59% 7.6
Asteroid Rangers 58 29 50% 0.10 20 19 95% 4.7
Asteroids 439 77 18% 0.00 48 39 81% 5.4
A Towering Problem 642 340 53% 0.00 341 306 90% 2.0
Automatic Trading 248 68 27% 0.05 78 52 67% 5.0
Average Speed 243 75 31% 0.00 75 63 84% 3.5